171. " they rejoice because of favour from allah and (his) grace,
and that allah does not waste the reward of the believers."

commentary:
this verse, in fact, is as an emphasis and as a more explanation upon
the glad tidings that martyrs receive after their slain. they will be happy
because of two matters. the first is for that they receive the bounties of
allah, ö not only his bounties but his grace, too, (which is the increase
and repetition of his merits). it says:

" they rejoice because of favour from allah and (his) grace, ..."

another matter is that they see that allah does not waste the
reward of the believers, ö neither the reward of the martyrs nor the reward
of these true believing strivers who have not obtained the rank of
martyrdom yet. it says:

"...and that allah does not waste the reward of the believers."